Keyboard overlapping the entry fields - xamarin

Question

i have a view which contains entry fields kept inside the scrollView,here when i tapped on entry field the keyboard popups and covers the remaining fields,by following this i couldnt able to solve my problem.i chnged my main activity as [Activity(Label = "MyApp", Icon = "#drawable/icon", Theme = "#style/MainTheme", MainLauncher = false, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation, WindowSoftInputMode = SoftInput.AdjustResize)] and also checked for AdjustPan nothing worked,how to scroll those fields upto last field when keyboardpopups?
<ContentView>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ScrollView Orientation="Vertical">
<StackLayout Grid.Row="0" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand" Padding="10">
<StackLayout.Spacing>
<OnIdiom x:TypeArguments ="x:Double" Phone = "8" Tablet ="16"/>
</StackLayout.Spacing>
<Entry x:Name="FirstNameEntry" PlaceholderColor="#9E9E9E" Text="{Binding FirstName}" Placeholder="First name" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="LastNameEntry" Text="{Binding LastName}" PlaceholderColor = "#9E9E9E" Placeholder="Last name" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="MobileNameEntry" Keyboard="Numeric" PlaceholderColor="#9E9E9E" Text="{Binding MobileNumber}" TextChanged = "On_PhoneNumberTextChanged" Placeholder="Mobile number" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="HouseNumberEntry" Text="{Binding HouseNumber}" PlaceholderColor="#9E9E9E" Placeholder="House number" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="StreetNameEntry" Text="{Binding StreetName}" PlaceholderColor="#9E9E9E" Placeholder="Street name" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="CityNameEntry" Text="{Binding City}" PlaceholderColor="#9E9E9E" Placeholder="City" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Entry x:Name="PostCodeEntry" Text="{Binding PostalCode}" PlaceholderColor="#9E9E9E" Placeholder="Post code" HorizontalOptions="FillAndExpand" TextColor="#191919" FontFamily="Avenir Book">
<Entry.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Entry.HeightRequest>
</Entry>
<Picker x:Name="AddressTypePicker" Title="Select type" HorizontalOptions="FillAndExpand" SelectedIndexChanged="AddressTypePicker_OnSelectedIndexChanged">
<Picker.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="30" Android="40" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="45" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Picker.HeightRequest>
</Picker>
</StackLayout>
</ScrollView>
<StackLayout BackgroundColor="#f2c646" Grid.Row="1" Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="End" Padding="0">
<StackLayout.HeightRequest>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="40" Android="50" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="50" Android="60" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</StackLayout.HeightRequest>
<StackLayout Padding="10">
<Label Text="Cancel" TextColor="Black" HorizontalOptions="StartAndExpand" FontFamily="Avenir Book" VerticalTextAlignment="Center">
<Label.GestureRecognizers>
<TapGestureRecognizer Tapped="OnCancelBtnClicked"/>
</Label.GestureRecognizers>
<Label.FontSize>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="15" Android="17" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="20" Android="22" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Label.FontSize>
</Label>
</StackLayout>
<StackLayout HorizontalOptions="EndAndExpand" Padding="10">
<Label Text="Save" TextColor="Black" VerticalTextAlignment="Center" FontFamily="Avenir Book">
<Label.GestureRecognizers>
<TapGestureRecognizer Command="{Binding SaveCommand}"/>
</Label.GestureRecognizers>
<Label.FontSize>
<OnIdiom x:TypeArguments="x:Double">
<OnIdiom.Phone>
<OnPlatform x:TypeArguments="x:Double" iOS="15" Android="17" WinPhone="28" />
</OnIdiom.Phone>
<OnIdiom.Tablet>
<OnPlatform x:TypeArguments="x:Double" iOS="20" Android="22" WinPhone="28" />
</OnIdiom.Tablet>
</OnIdiom>
</Label.FontSize>
</Label>
</StackLayout>
</StackLayout>
</Grid>

Answer 1

I believe you have a situation of signup form. Why don't you use tableview with Intent="Form" as table view has a built-in scroller which can accommodate for keep-entry-in-view behaviour. It gives native look of a form as well.
I used it in one of my projects and it worked perfectly on both iOS and Android.
<TableView Intent="Form" HasUnevenRows="true">
</TableView>
Reference: TableView
Hope this helps